What color is #303635?

#303635 is a dark low-chroma cool gray with a subtle cool cast. In RGB it is rgb(48, 54, 53), and in HSL hsl(170, 6%, 20%).

Is #303635 accessible as text?

On white, #303635 has a contrast ratio of 12.32:1 (passes WCAG AA for body text); on black it is 1.70:1 (fails). For text placed on #303635, use white for the best readability.

What is the closest Tailwind color to #303635?

The nearest Tailwind CSS token is neutral-700 (#404040).

What colors go well with #303635?

As a neutral, #303635 pairs cleanly with white, off-white and light grays for text, and sits under accent hues like blue, violet, emerald or warm orange — use it as a dark surface or high-contrast base and let the accent carry the color.

Is #303635 the same as CSS darkslategray?

No — #303635 is not the CSS named color darkslategray, but darkslategray (#2F4F4F) is the closest CSS named color by perceptual color distance — it sits in a different color family, so treat it as a rough reference, not a match.

#303635 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #303635

Not just a swatch — here's how #303635 works with other colors. Named schemes with #303635 in its natural role, and a note on why the supporting colors balance it.

Tech Product Signal · 5 colors

Signal #303635 Surface #14161A Highlight #F4F6F8 Secondary #586771 Accent #505655

Onyx is the vivid signal in this product UI — on a near-black surface with cool white, a slate grey and a lighter tint of Onyx.

Vintage Leather Lead · 5 colors

Lead #303635 Secondary #725018 Surface #E4DCC0 Accent #3A5142 Anchor #5B241E

Onyx plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Japanese Sand Base · 5 colors

Base #303635 Surface #EDEADC Highlight #F5F2E7 Secondary #B5B19F Ink #2A2723

Onyx sets a calm, sun-bleached base here, wrapped in bone and paper off-whites and a soft greige, with a single ink accent for wabi-sabi restraint.

Luxury Packaging Feature · 5 colors

Feature #303635 Anchor #141210 Accent #BAA94D Secondary #1E2C2A Surface #F1EDE3

Onyx carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #303635 Secondary #585A5A Support #979286 Ink #16140F

Onyx is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Onyx carrying the quiet middle.

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Color Lab

How #303635 actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 48/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 36/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 7/100

Very low

Reads engineered rather than organic — synthetic, digital.

Vintage feel 25/100

Low

Clean and current — no dusty, aged cast.

Luxury 64/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 3/100

Very low

Quiet and neutral — a supporting tone, not a signature.

UI accent fit 24/100

Low

Weak as an action color — too pale, too dark or too muted to signal.

Surface fit 61/100

High

Calm enough for large fills — backgrounds, cards, sections.

Print safety 98/100

Very high

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #303635

For UI

For branding

For interior

For fashion

People also use #303635 with

Outer Space Gunmetal Gray Platinum

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

Body text Passes on white at 16px and above. Pass

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 12.3:1. Use

Subtle surface Use #D4D8D7 for cards and hover fills. Tint 80

Avoid beside #303536 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #303635 at work across the surfaces designers actually ship.

Website / UI

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Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #303635;
  --color-base-rgb: 48 54 53;
  --color-base-oklch: oklch(32.7% 0.008 184.8);
  --color-50: #F7F8F8;
  --color-100: #E9ECEB;
  --color-200: #D4D9D8;
  --color-300: #B4BBBA;
  --color-400: #949E9C;
  --color-500: #75807E;
  --color-600: #5D6563;
  --color-700: #454A49;
  --color-800: #2F3232;
  --color-900: #1D201F;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  onyx: {
    50: '#F7F8F8',
    100: '#E9ECEB',
    200: '#D4D9D8',
    300: '#B4BBBA',
    400: '#949E9C',
    500: '#75807E',
    600: '#5D6563',
    700: '#454A49',
    800: '#2F3232',
    900: '#1D201F',
  },
}

$base: #303635;
$base-ink: #FFFFFF;
$base-50: #F7F8F8;
$base-100: #E9ECEB;
$base-200: #D4D9D8;
$base-300: #B4BBBA;
$base-400: #949E9C;
$base-500: #75807E;
$base-600: #5D6563;
$base-700: #454A49;
$base-800: #2F3232;
$base-900: #1D201F;
$base-hover: #262B2A;
$base-subtle: #BFC5C4;

{
    "color": {
        "base": {
            "value": "#303635",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F7F8F8",
                "type": "color"
            },
            "100": {
                "value": "#E9ECEB",
                "type": "color"
            },
            "200": {
                "value": "#D4D9D8",
                "type": "color"
            },
            "300": {
                "value": "#B4BBBA",
                "type": "color"
            },
            "400": {
                "value": "#949E9C",
                "type": "color"
            },
            "500": {
                "value": "#75807E",
                "type": "color"
            },
            "600": {
                "value": "#5D6563",
                "type": "color"
            },
            "700": {
                "value": "#454A49",
                "type": "color"
            },
            "800": {
                "value": "#2F3232",
                "type": "color"
            },
            "900": {
                "value": "#1D201F",
                "type": "color"
            }
        }
    }
}

Palettes built on #303635

Color Lab

Pairs with #303635

UI roles & guardrails

In real applications

Scales

Every model

Export